Fibrous container.



L. P. BROWN.

FIBROUS CONTAINER.

APPLICATION FILED JAN. 8. 1912. RENEWED MAR. 14.1917.

1,243,698. Patented Oct. 23,1917.

WlTNESSES INVENTOR I Luther]? Bro Wpbottle as Well as adding strength tothe UTE rare rm LUTHER P. BROWN, OF SEY, NEW JERSEY, ASSIGN'QR, BY

TO EMPIRE PAPER BOTTLE COMPANY,

MESNE ASSIGNMENTS, A CORPORATION OF NEW JERSEY.

FEROUS CONTAINER.

Specification of Letters Patent. Patented Got. 23, 191 *3,

Application filed January 8, 1912, Serial No. 669,955. Renewed March 14,1917. Serial No. 154,896.

To all whom it may concern:

Be it known that I, LUTHER P. BROWN, a citizen of the United States,residing in Ramsey, county of Bergen, and State .of New Jersey, haveinvented a certain new and useful Fibrous Container, of which thefollowing is a specification.

This invention is a fibrous container, and the object of the inventionis to make a container of the type specified adapted especially forcontaining liquids, such as milk, having a tapering neck ofsubstantially the same form as that of an ordinary milk bottle.

Heretofore it has been proposed to mold milk bottles from paper pulp,but so far as I am aware no one has, prior to my invention, constructeda bottle having a tapering neck from paper.

With the object specified in view, this invention embodies a paperreceptacle or bottle for containing liquids, the neck of which istapered by producing folds in the paper, lengthwise of the neck, at thedesired points, resulting in a bottle the mouth of which is smaller thanthe body of the receptacle.

The folds referred to not only permit of the bottle being tapered, asspecified, but they perform several other important functions such asimparting strength to the neck and mouth of the bottle, providing forthe expansion of the contents of the bottle, and assisting in thehandling of the bottle by providing a frictional surface which can beeasily and firmly gripped by the hand. The said folds are formed bydepressing, the

paper on the desired lines, 2'. e., producing folds therein, the depthof which are considerably greater at or near the mouth of the bottlethan at the points where the folds start, ,thereby resulting ingradually tapering folds.

n the preferred construction, while the neck of the bottle. is taperedas specified, the mouth thereof is cylindrical, thereby providing aconvenient shape for closing, as well as for filling and emptying, thebottle. The mouth of the bottle is preferably provided with internal andexternal cylindrical rings which securely retain the folds of thebottle, the inner ring performing the further function of providingasmooth surface for facilitating the pouring of the contents 1invention, but the construction shown therein is to be understood asillustrative, only, and not as defining the limits of the invention.

Figure 1 is a vertical longitudinal section through a paper bottleconstructed in accordance with this invention, the plane of the sectionbeing indicated by the dotted line 11 of Fig. 2.-

Fig. 2 is a plan view of the mouth portion of the bottle, a portion ofthe neck thereof being shown as broken away.

Fig. 3 is a horizontal transverse section on the line 3-3 of Fig. 1.

The bottleA is formed of fibrous material, the same being composed ofpaper and wound upon a mandrel so as to produce two or more plies orlayers, as at a in Fig. 1. The neck B of the bottle tapers from thecylindrical body A toward the cylindrical mouth C, said taper beingimparted to the neck byforming therein a series of folds D. The foldsextend lengthwise of the bottle, they converge from the cylindrical partof the body to the mouth, and they extend to the outlet edge of thebottle. The folds D produce a series of ribs in the tapering neck of thebottle, said ribs being shown as positioned on the inside of the neck,although it is evident that the folds or ribs may be exteriorly to thebottle. The ribs are each tapering in form so that the rib increases indepth from the upper end thereof toward the lower end, such taper of theseries of ribs taking up considerable of the paper material adjacent tothe mouth and the de crease in the depth of the ribs toward the bodyallowing more of the paper material menting handlin it.

At the mouth of the bottle the upper parts of folds D are compressedupon'themselves and bent upon the walls of paper material so as toproduce a substantially cylindrical mouth portion, the bent series ofcom ressed folds being in lapping order as shown in Fig. 3. The increasein the thickness of the aper material due to the bending of the olds inlapping order produces a substantially rigid mouth bottle, and thestiflness and strength of this mouth portion C is increased by theemployment of one or more substantially cylindrical rings.

As shown, two rings E, F are employed, the ring E being positioned inthe mouth and within the bent end portions of folds 11), whereas ring Fis externally to the bent ends of folds D. The rings E, F are united ina suitable way'to the compressed and bent end portionsof the folds,preferably by cethe rings in position and upon said ends of the folds,whereby the rings substantially incase the folded material at the mouthportion of the bottle, for the purpose of retaining the folded materialpermanently in position, besides adding stifl'ness and strength to themouth of the container. The inner ring E provides a smooth cylindricalsurfacefor the inflow or outflow of the material, usually liquids, thusprecluding to a substantial extent the lodgm'ent of the liquid materialwithin the mouth of the bottle. Similarly, the external ring F presentsa smooth exterior surface, upon which may be fitted a flanged cap forclosing the mouth of the bottle.

The ribs formed by the longitudinal folds at the neck of the bottleperform important functions in addition to the primary one of so takingup the material as to produce the taper in the neck. Among theseadditional functions secured by the folds in the neck are, gidity,stifiness and strength of the neck portion; second, they permitexpansion of the contents of the bottle consequent upon a thawing out ofthe liquid should it become frozen within the bottle, as is frequentlythe case when milk is delivered to customers during cold weather and ispermitted to remain out of doors for several hours; and, third, thepresence of the ribs impart a certain irregularity to the externalsurface of the neck portion of the bottle, which roughened surfaceaflords a means whereby a good grip may be obtained on the bottle whenlln a dition to the ribs formed by the folds, the body A of the bottleis provided with an annular bead or .groove G at the base of thetapering neck, or between the latter and the cylindrical body A, seeFig. 1. This annular groove imparts a certain amount of stiffness to thebody and it allows,

naaaees at the outlet from the first, the ribs add materially to the ri-,a solid and substantial closure which 18 united permanently to thebottle in a liquid tight manner. The bottom is provided with an integralcentral depending member h and with an integral depending annular flangeh, the latter being exteriorly toand around the central member, see Fig.1.

'During the manufacture of the bottle, the

bottom is positioned within the lower part of the cylindrical body A,well above the bottom edge thereof, the flange h of the bottom being inclose contact with the annular wall of the body. The bottom and itsflange are united to the body in a suitable way, as by cementing theflange and bottom to the body, and thereafter the lower end edgeportionof the material composing the body is folded, bent or crimped, as at 2',around the peripheral flange h of the bottom. Said folded part i of thebody is united, by cement, to the flange of the bottom, whereby theflange is substantially incased within the material composing the bodyA, thus resulting in a permanent attachment of the bottom to the bodyand in the production of a liquid tight joint between these parts.

The paper bottle is rendered water or liquid proof by suitable materialsincorporated in the paper or applied to the bottle during or subsequentto its manufacture. 0bviously,othe paper may be saturated or coated withparaffin, or other water proofing agent, prior to making the bottle, orafter the bottle shall have been made, it may be saturated or coatedwith the water proofing agent. The water proofing agent, or othermaterial used in treating the paper or the product resulting therefrom,operates also to impart a certain degree of translucency to the bottleso that the level of the liquid therein may be determined byobservation.

A paper bottle constructed as herein shown and described is capable ofmanufacture by suitable machinery in large quantities so as to producethem rapidly and economically. The bottle is sufiiciently rigid tosuccessfully withstand a considerable amount of rough handling withoutbreaking or crackin the same so as to result in the loss of the liquidcontents. lln fact, the bottle is well adapted for general use, althoughit is intended to be used mainly for dispensing such necessary materialsfor human consumption as milk, etc. It is produced so economically thatwhen once used it can be thrown away like an ordinary carton in whichcrackers, etc, are packed.

tion, what I claim as new, and desire to secure by Letters Patent is 1.A paper bottle comprising a tubular body portion, an annular collar atthe mouth portion, and a tapering neck portion intermediate the bodyportion and the mouth portion, said bottle being composedof a web orsheet of paper coiled upon itself to produce successive envelopingwindings and the material of said neck portion being folded to producelongitudinal ribs positioned internally of the bottle and increasing indepth from the tubular body portion to the mouth portion, said foldedmaterial composing the ribs being deflected at the mouth portion intolapping relation to the unfolded material and producin a stiffenedreinforced mouth collar the t ickness of which exceeds the thickness ofthe material composing the tubular body.

2. A paper bottle comprising a tubular body portion, an annular collarat the mouth portion, and atapering neck portion intermediate said bodyportion and the mouth portion, said bottle being composed of a web orsheet of fibrous material coiled upon itself to produce successiveenveloping windings, the material of said tapering neck portion beingfolded upon itself to form a series of ribs positioned internally of thebottle and extending radially to the longitudinal axis thereof, saidribs increasing in depth from the tubular body portion to the annularmouth portion and the folded material composing said ribs beingdeflected at said mouth portion into lateral lapping relation to theinfolded material at said mouth portion, said folded and lappingmaterial producing with the infolded material a stiffened reinforcedannular mouth collar the ag regate thickness of which exceeds the thickness' of the material composing the tubular body.

3. A paper bottle comprising a tubular body, an annular mouth and atapering neck, said bottle being composed of a web or sheet of paperwoun d successively upon itself and with the material composing the neckfolded to produce longitudinal tapering ribs extending from the tubularbody to the edge of the annular mouth, said folded material of the ribsbeing flattened at the annular mouth to produce plaits which overlap theunfolded material and which plaits are positioned substantially incontact with each 4. A paper bott 0 comprising a tubular body, anannular collar at the mouth portion, and a tapering neck extendingintermediate said annular collar and the tubular body, said bottle beingcomposed of a web or sheet of fibrous material coiled upon itself toform successive enveloping windings, the material composing the taperingneck being folded upon itself to produce a seriesof tapering ribspositioned internally of, and radially to the longitudinal axis of thebottle said material of the ribs forming on the exterior surface of theneck a series of open longitudinal channels which increase in depth fromthetubular body to the annular mouth, the end portions of said foldedribs being compressed into lapping relation at the annular mouth andproducing a stiffened reinforced collar the thickness of' atthe mouthportion bein compressed into lapping relation to the un. olded materialexteriorly thereof, an inside b'and contacting with the folded materialof the annular mouth, and an external band contacting with "said foldedand lapping material "of the mouth portion, said bands cooperating toconfine thefolded material and presenting smooth surfaces at the mouthportion of the bottle. 7

In testimony whereof I have signed my name to this specification in thepresence .of two subscribing witnesses.

, LUTHER P. BROWN.

Witnesses:

Gr. HAROLD Pon'rnn. E. T. PAULL.

